Related Experiment Video
Updated: May 7, 2026
08:34
Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
11.3K
Measuring chest circumference change during respiration with an electromagnetic biosensor
Summary
A modified DC motor chest belt accurately measures chest circumference changes for lung function assessment. This wearable device also harvests significant power during normal breathing.
Area of Science:
- Biomedical Engineering
- Wearable Technology
- Respiratory Monitoring
Background:
- Assessing lung function is critical for diagnosing respiratory conditions.
- Current methods for measuring tidal volume can be cumbersome or invasive.
- There is a need for non-invasive, wearable solutions for respiratory monitoring.
Purpose of the Study:
- To develop and validate a novel wearable sensor for measuring chest circumference changes.
- To investigate the potential of using a modified DC motor for simultaneous respiration monitoring and energy harvesting.
- To assess the accuracy and power generation capabilities of the proposed device.
Main Methods:
- An off-the-shelf DC motor was adapted into a wearable chest belt.
- The device measured chest circumference changes on a mechanical chest model.
- Circumference changes were calculated from the motor's voltage output.
- Power harvesting capabilities were evaluated during simulated normal breathing.
Main Results:
- The wearable motor accurately measured circumference changes within 0.95mm (SD 0.37mm).
- The device successfully harvested at least 29.4µW of power during normal breathing.
- The system demonstrated a feasible approach for integrated respiratory monitoring and energy harvesting.
Conclusions:
- A modified DC motor can serve as an effective wearable sensor for monitoring chest circumference changes.
- The developed device offers a dual function of respiratory assessment and wearable energy harvesting.
- This technology holds promise for non-invasive, self-powered respiratory monitoring systems.
Related Concept Videos
01:23Assessment of Respiration
2.3K
The respiratory system's basic structures and primary functions lay the foundation for nurses' comprehensive respiratory assessments. This assessment includes subjective and objective data to gauge the patient's respiratory health.
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like...
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like...
2.3K
01:20Assessment of Ventilation I: Respiratory Rate
2.8K
Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
2.8K
01:19Special considerations while measuring oxygen saturation
1.0K
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
1.0K
01:29Assessment of Ventilation II: Respiratory Depth and Rhythm
2.9K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
2.9K
01:27Physical Assessment of the Respiratory Tract II: Inspection
1.4K
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
Chest Configuration
The chest configuration...
1.4K